If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
1.5 x 10\(^8ms^{-1}\)
2.0 x 10\(^8ms^{-1}\)
3.0 x 10\(^8ms^{-1}\)
4.5 x 10\(^8ms^{-1}\)
Correct answer is B
n = \(\frac{\text{speed in air}}{\text{speed in glass}}\)
1.5 = \(\frac{3 \times 10^4}{\text{speed in glass}}\)
Speed in glass = 3 x 10\(^8\)m/s / 1.5
= 2 x 10\(^8\)m/s
I only
II only
III only
I, II and III only
Correct answer is C
No explanation has been provided for this answer.
A hydrometer is an instrument for measuring the
a depth of water of water in a vessel
relative density of a liquid by the method of flotation
relative density of a liquid by finding the apparent loss in weight
relative humidity of the air
Correct answer is B
No explanation has been provided for this answer.
0\(^o\) and 0\(^o\)
60\(^o\) and 60\(^o\)
90\(^o\) and 90\(^o\)
90\(^o\) and 0\(^o\)
Correct answer is D
No explanation has been provided for this answer.
Which of the following is consistent with Charles' law?
I
II
III
IV
Correct answer is A
This is the correct graph. The graph is volume against temperature where temperature is in Celsius.